In order to overcome the influence of stray light and impurity on the image of video laryngoscope, we designed an optical structure by using TracePro, a simulation software, to imitate optical path status. Images are captured by CMOS sensor which has the size of 4.5 mm×18 mm and the pixel size is 1.75 μm×1.75 μm. The sensor is placed in the elbow of the laryngoscope, and the elbow has the size of 9 mm×10 mm. As a result, the video laryngoscope could meet the requirements, including wide viewing angle (80°), short focal length (2.8 mm), long working distance (10 cm), and least impurity. In the test, the image was clear and there was no facula or impurity in the condition of required illumination, and thus stray light and image impurity were eliminated and the image quality was improved.
Citation：
LUOEnsi, LIUHongying, ZHOUJianping, CAIJinzhi, YINMan, PIXitian. Structure design of a new video laryngoscope image sensor. Journal of Biomedical Engineering, 2017, 34(1): 57-61. doi: 10.7507/1001-5515.201601038
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Copyright © the editorial department of Journal of Biomedical Engineering of West China Medical Publisher. All rights reserved
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Schaub M P. The design of Plastic Optical Systems. New York: SPIE Press, 2009.
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原育凯. 光学系统杂散光的消除方法. 大气与环境光学学报, 2007, 2(1): 6-10.
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禹璐, 程德文, 周伟, 等. 硬性内窥镜光学系统的杂散光分析与抑制. 光学 精密工程, 2014, 22(3): 526-527.
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| 9. |
吴中林, 吴恒莱, 占美琼, 等. 40W 大功率白光 LED 光源模块的研制. 光源与照明, 2007, 3(1): 28-29.
|
| 10. |
钱雯磊, 李筠, 陈晓荣, 等. 用 TracePro 设计高功率 LED. 仪器仪表学报, 2007, 28(8): 967-970.
|
| 11. |
纪诞磊, 曾令军, 程波, 等. TracePro 在 LED 模拟中的应用. 科技视界, 2012(24): 37-38.
|
- 1. 许广. 基于嵌入式系统的便携式视频喉镜研发. 杭州: 浙江大学, 2014.
- 2. 汪小海, 王丽君, 许波. 视频喉镜与直接喉镜气管插管血压和心率的变化. 临床麻醉学杂志, 2009, 25(4): 314-315.
- 3. 禹璐, 程德文, 周伟, 等. 大景深高清硬性内窥镜光学系统的优化设计. 光学学报, 2013, 33(11): 221-229.
- 4. 许红梅. 便携式电子视频喉镜关键技术的研究与实现. 南京: 东南大学, 2014.
- 5. Duan J, Mei C, Jiang K, et al. The influence of the stray light on MTF in optical system in test range// Information Optoelectronics, Nanofabrication and Testing. Wuhan: The Optical Society of American and Huazhong University of Science and Technology, 2012: 26-27.
- 6. Schaub M P. The design of Plastic Optical Systems. New York: SPIE Press, 2009.
- 7. 原育凯. 光学系统杂散光的消除方法. 大气与环境光学学报, 2007, 2(1): 6-10.
- 8. 禹璐, 程德文, 周伟, 等. 硬性内窥镜光学系统的杂散光分析与抑制. 光学 精密工程, 2014, 22(3): 526-527.
- 9. 吴中林, 吴恒莱, 占美琼, 等. 40W 大功率白光 LED 光源模块的研制. 光源与照明, 2007, 3(1): 28-29.
- 10. 钱雯磊, 李筠, 陈晓荣, 等. 用 TracePro 设计高功率 LED. 仪器仪表学报, 2007, 28(8): 967-970.
- 11. 纪诞磊, 曾令军, 程波, 等. TracePro 在 LED 模拟中的应用. 科技视界, 2012(24): 37-38.
